Initial growth stages of epitaxial BaTiO3 films on vicinal SrTiO3 (001) substrate surfaces

Alina Visinoiu, Marin Alexe, Dietrich Hesse, Ho Nyung Lee, D N Zakharov, Alain Pignolet

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Abstract

The initial growth mechanism of epitaxial BaTiO3 films is studied by combined application of atomic force microscopy, cross sectional high-resolution transmission electron microscopy, and x-ray diffraction. Epitaxial BaTiO3 thin films were grown by pulsed laser deposition on vicinal Nb-doped SrTiO3 (SrTiO3:Nb) (001) substrates with well-defined terraces. X-ray diffraction and cross sectional high-resolution transmission electron microscopy investigations revealed well-defined epitaxial films and a sharp interface between BaTiO3 films and SrTiO3:Nb substrates. The layer-then-island (Stranski-Krastanov mode) growth mechanism observed by analyzing the morphology of a sequence of films with increasing amount of deposited material has been confirmed by microstructure investigations. (C) 2002 American Institute of Physics.
Original languageEnglish
Pages (from-to)10157
JournalJournal of Applied Physics
Volume91
Issue number12
DOIs
Publication statusPublished - Jun 2002

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    Visinoiu, A., Alexe, M., Hesse, D., Lee, H. N., Zakharov, D. N., & Pignolet, A. (2002). Initial growth stages of epitaxial BaTiO3 films on vicinal SrTiO3 (001) substrate surfaces. Journal of Applied Physics, 91(12), 10157. https://doi.org/10.1063/1.1478800